JBL ASB7128 Subwoofer 100314446 and are available in a

and are available in a variety of sizes

Battery-powered 700 Hz signal source used to troubleshoot audio systems by checking microphone lines for correct patching and detecting unusual noise that is present

also available in Purple livery

Shock absorbing rubber feet

And the lens-tube door provides quick and easy access when you want to clean the lens assembly (tool-free

JBL ASB7128 Subwoofer 100314446 and are available in aJBL ASB7128 High Power Dual 18 inch Subwoofer Ultra Long Excursion High Power Dual 18" Subwoofer The ASB7128 is a high power, lightweight front loaded vented subwoofer enclosure housing two of JBL's exclusive 2269H Ultra Long Excursion 18" Differential Drive woofers. This woofer features neodymium magnet, dual voice coils and dual gaps, JBLs exclusive Vented Gap Cooling and ultra robust composite cone for high excursion and extra long life. Woofer is